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Discrete Math & Logic
The mathematics of the finite and the exact: how many ways, which statements follow from which, and what a proof actually needs. Truth tables are built row by row.
Уроки
Introductory
Truth tables
And, or, not, implies — and tautologies.
truth table of p and q
Core
Sums and induction
Closed forms for sums, and how induction proves them.
sum of k for k = 1 to n
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